Metal truck



May 29, 1928.

H. STIER METAL TRUCK Filed June 2, 1927 Fig. 2.-

Patented May 29,1928.

} UNITED STATE-:15-

'. an'rnn Application 'filed nine/2, 1927, Serial No.

Metal trucks made of zinc-coated iron are generally built up of plates joined by brackets and rivets. The plates must be. perforated for the rivets, and when ,the heated rivets are inserted they are liable to melt/the zinc, and rusting subsequently, occurs. The perforation weakens both the plates and the brackets, and the rivet-head interferes with the cleaning of the truck. Autogenous welding has been proposed as a substitute,- but the heating was found to causesuch dis-'- strength to riveted joints are obtainable, and 7 it is nevertheless not too difficult to disassemble the parts when renewal of a plate or plates is required.'- The zinc coating is con tinuous, so that no patches of iron are exposed to rusting. The welding, performed electrically, is generally performed wholly on theoutside, leaving the inside smooth, so that it is easy to clean.

to this invention a truck'is.

ism-ea nnnmamr smart, or HEBNE, GERMAN raucz. 196,048, 5nd in ,Germany m 22, i926.

A truck constructed according to the invention isshown in the annexed drawings, in which Fig. lis a side elevation, partly 1n section, and Fig; 2 a cross section.

The U-sh'aped plate or sheet ais joined to 35, two flanged head platesbl by'joi'nts produced by welding at intervals only, as indicated at a, c, the intervalsbeing approximately ugial to those, generally existing between t class of work.- Attheseparts 0 the joints are sprayed with zinc, after the welding The connection to-the underframe a? is similarly made by welded joints f, f, as is the attachment of the reinforcing-rimpiece evatthe-top. f

Having now particularly'described and ascertained the nature of said invention I "and in what manner the same isto be performed, I declare that what I claim is A metaltruck consisting of an 'approxi mately U-shaped zinccoated plate or plates,

with zinc coated end or; head plates, the

' said plates being joined to each other by electrically welded'joints made at intervals 5 along their edges, and the welded parts being coated with zinc sprayedthereon.

ntestimony whereof I aflix my signature.

HERMANN, STIEB.

e rivets heretofore used for this 0 v 

